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Article: Moiré Fringe Induced Gauge Field in Photonics

TitleMoiré Fringe Induced Gauge Field in Photonics
Authors
Issue Date2020
PublisherAmerican Physical Society. The Journal's web site is located at https://journals.aps.org/prl/
Citation
Physical Review Letters, 2020, v. 125 n. 20, article no. 203901 How to Cite?
AbstractWe realize moiré fringe induced gauge field in a double-layer photonic honeycomb metacrystal with mismatched lattice constants. Benefitting from the generated strong effective gauge field, we report direct measurement of the band diagrams of both Landau level flat bands and intermagnetic-domain edge states. Importantly, we observe the correlation between the momentum and orbital position of the Landau modes, serving as an evidence of the noncommuteness between orthogonal components of the momentum. Without complicated time driving mechanics and careful site-by-site engineering, moiré superlattices could emerge as a powerful means to generate effective gauge fields for photonics benefiting from its simplicity and reconfigurability, which can be applied to nonlinearity enhancement and lasing applications at optical frequencies.
Persistent Identifierhttp://hdl.handle.net/10722/294717
ISSN
2019 Impact Factor: 8.385
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, W-
dc.contributor.authorGao, W-
dc.contributor.authorChen, X-
dc.contributor.authorShi, F-
dc.contributor.authorLi, G-
dc.contributor.authorDong, J-
dc.contributor.authorXiang, Y-
dc.contributor.authorZhang, S-
dc.date.accessioned2020-12-08T07:40:51Z-
dc.date.available2020-12-08T07:40:51Z-
dc.date.issued2020-
dc.identifier.citationPhysical Review Letters, 2020, v. 125 n. 20, article no. 203901-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/294717-
dc.description.abstractWe realize moiré fringe induced gauge field in a double-layer photonic honeycomb metacrystal with mismatched lattice constants. Benefitting from the generated strong effective gauge field, we report direct measurement of the band diagrams of both Landau level flat bands and intermagnetic-domain edge states. Importantly, we observe the correlation between the momentum and orbital position of the Landau modes, serving as an evidence of the noncommuteness between orthogonal components of the momentum. Without complicated time driving mechanics and careful site-by-site engineering, moiré superlattices could emerge as a powerful means to generate effective gauge fields for photonics benefiting from its simplicity and reconfigurability, which can be applied to nonlinearity enhancement and lasing applications at optical frequencies.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at https://journals.aps.org/prl/-
dc.relation.ispartofPhysical Review Letters-
dc.rightsCopyright 2020 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevLett.125.203901.-
dc.titleMoiré Fringe Induced Gauge Field in Photonics-
dc.typeArticle-
dc.identifier.emailZhang, S: shuzhang@hku.hk-
dc.identifier.authorityZhang, S=rp02759-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevLett.125.203901-
dc.identifier.pmid33258635-
dc.identifier.scopuseid_2-s2.0-85096172201-
dc.identifier.hkuros320351-
dc.identifier.volume125-
dc.identifier.issue20-
dc.identifier.spagearticle no. 203901-
dc.identifier.epagearticle no. 203901-
dc.identifier.isiWOS:000589182300006-
dc.publisher.placeUnited States-
dc.identifier.issnl0031-9007-

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